Microsoft Exchange 2010 includes a new (and great) feature, called online archive, which enables you as an IT administrator to provision your mailbox-enabled users with a familiar personal archive, available online, providing you with a lot of features to preserve and discover e-mail data.

thank you so far, but if we imagine i have unlimited space will these archive based on things like, checking emails sent by user a to user b on in may of 2012, even if both emails and users are long deleted

The native product does require the user account to still exist.
If you want to be able to remove the accounts then you will have to go third party. Something like GFI Mail Archiver would be a good choice.

On September 18, Experts Exchange launched the first installment of the Help Bell, a new feature for Premium Members, Team Accounts, and Qualified Experts. The Help Bell will serve as an additional tool to help teams increase question visibility.

If something goes wrong with Exchange, your IT resources are in trouble.All Exchange server migration processes are not designed to be identical and though migrating email from on-premises Exchange mailbox to Cloud’s Office 365 is relatively simple…

This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online.
The email signature template has been downloaded from:
www.mail-signatures…

Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers.
According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…